刚确定正式访问访华时间，不到24小时，美王牌被废，英媒：中方发现了美国弱点

Core Viewpoint - The U.S. Supreme Court ruled that President Trump's tariffs imposed under the International Emergency Economic Powers Act were illegal, undermining his negotiation leverage with China ahead of his planned visit [3][4][7]. Group 1: Tariff Changes and Legal Implications - The Supreme Court's decision overturned tariffs exceeding $175 billion, including "reciprocal tariffs" and "fentanyl tariffs" against Chinese goods, stating that the power to impose tariffs lies with Congress, not the President [3][4]. - Following the ruling, Trump announced a new 10% import tariff on all goods entering the U.S., which he later proposed to increase to 15%, under the Trade Act of 1974, but this is limited to 150 days without Congressional approval [4][6]. - Trump's use of the Trade Act of 1974 marks him as the first U.S. president to impose tariffs under this law, but the new tariffs are significantly lower than previous rates, which were as high as 25% [4][10]. Group 2: International Reactions and Trade Dynamics - China's Ministry of Commerce expressed opposition to unilateral tariffs and emphasized that trade wars yield no winners, urging the U.S. to cancel such measures [6][10]. - European leaders are increasing their engagement with China, contrasting with the U.S.'s chaotic tariff policies, as seen in the visits from the UK and Germany, which focus on strengthening economic ties [6][10]. - The U.S. tariff policy's unpredictability is damaging international trade order and trust among allies, with potential refund claims from U.S. companies reaching up to $175 billion [7][11]. Group 3: Broader Economic Context - The turmoil in U.S. tariff policy reflects internal contradictions within the American political system, highlighting the checks and balances that limit presidential power [7][11]. - The upcoming midterm elections may influence tariff policies, as inflation pressures could affect voter sentiment, prompting Trump to exempt certain consumer goods from tariffs [11][12]. - The situation illustrates a shift in global economic relations, with countries like Germany and the UK opting for pragmatic cooperation with China, contrasting with U.S. protectionist measures [10][11].